Home / 26,647.80-36,768.78-18,677.40

Finding the Fourth Proportional to 26,647.80, 36,768.78 and 18,677.40

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Solution

The fourth proportional to 26,647.80, 36,768.78 and 18,677.40 is: 25,771.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,647.80 : 36,768.78 = 18,677.40 : x
  2. Step 2: Convert to fraction form
    26,647.80/36,768.78 = 18,677.40/x
  3. Step 3: Cross multiply
    26,647.80x = 36,768.78 × 18,677.40
  4. Step 4: Simplify right side
    26,647.80x = 686,745,211.57
  5. Step 5: Solve for x
    x = 686,745,211.57/26,647.80
  6. Step 6: Final answer
    x = 25,771.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.